Product Introduction
When probe tip detachment or cable pull-out compromises machine monitoring reliability, the Bently Nevada 330191-40-75-15-00 provides a robust solution. This 3300 XL 8 mm ETR proximity probe addresses common failure modes with patented TipLoc and CableLoc designs that ensure a stronger bond between tip and body and a pull strength of 330 N (75 lbf). The probe is part of the 3300 XL series, engineered for vibration monitoring in critical rotating machinery.
Technical Specifications
The Bently Nevada 330191-40-75-15-00 delivers precise measurements with the following key parameters:
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Power Supply: Requires -17.5 Vdc to -26 Vdc (nonincendive circuit) at 12 mA max; -23 Vdc to -26 Vdc with barriers.
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Supply Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage.
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Output Resistance: 50 Ω.
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Probe DC Resistance (1.5 m length): 7.73 ± 0.50 Ω.
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Probe Tip Material: Polyphenylene sulfide (PPS).
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Probe Case Material: AISI 303 or 304 stainless steel.
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Standard Cable: 75Ω triaxial, FEP insulated, available in lengths 0.5, 1, 1.5, 2, 3, 5, or 9 meters.
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Extended Temperature Range Cable: 75Ω triaxial, PFA insulated, in lengths 0.5, 1, 1.5, 2, 5, or 9 meters.
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Armor (optional): Flexible AISI 302 or 304 SST with FEP outer jacket.
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Tensile Strength: 330 N (75 lbf) probe case to lead; 270 N (60 lbf) at lead to extension cable connectors.
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Connector Material: Gold-plated brass or beryllium copper.
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Maximum Connector Torque: 0.565 N·m (5 in·lbf).
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Probe Case Thread: 3/8-24 UNF, maximum thread engagement 0.563 in.
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Weight: 323 g/m (11.4 oz).
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Temperature Schedule: For EPL Ga and Gc: T1 -55°C to +232°C, T2 -55°C to +177°C, T3 -55°C to +120°C, T4 -55°C to +80°C, T5 -55°C to +40°C.
Application Scenarios
The Bently Nevada 330191-40-75-15-00 excels in monitoring radial and axial shaft vibration in turbines, compressors, pumps, and fans. Its 8 mm probe diameter provides increased ruggedness, making it ideal for environments with physical abuse potential. The patented TipLoc and CableLoc features reduce downtime caused by probe damage, directly cutting maintenance costs.
Maintenance & Reliability
Thanks to its robust design, the 330191-40-75-15-00 requires fewer inspections than conventional probes. The CableLoc design prevents cable pull-out under tension, while the TipLoc molding creates a permanent bond between tip and body. The Viton O-ring seals the probe against differential pressure, although probes are not pressure-tested prior to shipment. Always verify the temperature schedule to ensure proper operation within your environment.
Compatibility & Integration
The Bently Nevada 330191-40-75-15-00 is designed for use with BN extension cables and BN Proximitor sensors to meet probe entity parameters. It integrates seamlessly into existing 3300 XL monitoring systems. One-meter systems do not require an extension cable. The probe supports nonincendive circuit connections per installation drawing 140979.
Selection Guide & Purchasing Advice
When ordering the 330191-40-75-15-00, verify the unthreaded length (40 = 4.0 in), overall case length (75 = 7.5 in), and total length (15 = 1.5 meters). The agency approval option is 00 (not required). Ensure your thread type matches the 3/8-24 UNF specification. For a reliable source of genuine Bently Nevada 330191-40-75-15-00 probes, choose PLC Source PRO for new, factory-packed units backed by a 12-month warranty.